Scotch



July 27, 1937. c. F. SMITH 2,088,555

SCOTCH Filed Oct. 29, 1956 2 Sheets-Shet 1 3mm 6. 1. Sim/7k alum/MA;

July 27, 1937. c sMlTH 2,088,555

SCOTCH Filed Oct. 29, 1936 2 Sheets-Sheet 2 a wucmk r- EM/M4 WW3Patented July 27, 1937 unrrso, srarss rA'rE T OFFICE 2,088,555 SCOTCHCharles F. Smith, English, W. Va. Application October 29, 1936, SerialNo. 108,283

7 Claims.

'This invention relates to an automatic safety scotch mechanism for minecarsand. it aims to provide a novel construction capable of use inconnection with any railway car, although especially designed to makecoal mining safer.

A prime object is to provide such a construction having a scotch blockadapted to prevent the car fromrunning off of a rail and a movablescotch block which is positioned automatically through engagement of acar with the stationary or first mentioned scotch block.

The more specific objectsand advantages will become apparent fromaco-nsideration of the description following taken in connection withthe accompanying drawings illustrating an operative embodiment.

In said drawings:-- 1

Figure 1 is aview in side elevation showing my improvements in. positionabout to be engaged by a car;

Figure 2 is a plan view of the parts in the con.- dition of Figure 1;

Figure 3 is a reverse side elevation to Figure 1;

Figure 4is an end elevation looking from the right of Figure 2;

Figure 5 is a detail section taken on the line 5-5 of Figure 1;

Figure 6. is; a side elevation showing the improvements in operativecondition holding a car;

Figure '7 'is' a plan View of the parts of Fig-- ure 6;

Figure 8 is a detail section taken on the line 8--8 of Figure 6, and

Figure 9 is a detail section taken on the line 99 of Figure 6.

Referring specifically to the. drawings wherein like referencecharacters designate like or similar parts, Ill designates one railortrack of a rail way, for mine cars, a wheel of one of which is suggestedas at H, saidrail and wheel being of conventional structure.

In carrying out the invention, a scotch block is employed at 12, whichis cut-out as at 13, in order to intimately fit against the rail andextend above it, the portion of the block above the rail being concaveas at M to conform with the periphery of the'wheel II. Said block 12 isadapted to be fastened to the rail in a stationary manner and to thisend a detachable clamp block is employed at It, cut away to intimatelyfit the block 12 and clamp 15 which engage the ball 20 of the rail it,are preferably serrated or roughened as at 2! so that they may engagethe ball with less danger of slippage.

An arm 23 extends rigidly from the block I2 5 and to the free end ofsuch arm on a vertical pivot or bolt 24, a movable scotch block 25 isfastened, preferably through the mediumof an arm26. Arm 25 has a lug 21thereon to which a lever or bar 28 is pivoted by means of a verti- 10cal bolt 29. To such lever 28 a trigger member 31] is pivoted by meansof an element 3| on a horizontal axis and which trigger is pivoted to arod 32, preferably slightly curved as shown, and having an abutment 33at its outer end, the 15 trigger. 38 being slidable alongthe rod 32 aswell as pivotally mounted on the same.

It will be noted that the clamp member i5 is beveled or cut away as at34 and that the lever I 8 is beveled or cut away as at 35. 20

Normally the mechanism is set in the position best shown in Figures 1 tol. The movable scotch block 25 is thus out of the path of movement ofthe car. Thewheel II will move on the track orrail l0 past the scotchblock 25 and engage 25 thetrigger .30, moving it on its axis 32 andcausingit to move the lever 28 and scotch block 25 into alignment withthe scotch block [2, on the opposite side of the wheel, thusautomatically functioning. The wheel as a result, will be held by theblock 12 from rolling off the end of the railand it will also be heldfrom movement in the opposite direction by the scotch block 25.

Attention is called to the fact that as the wheel engages the surface M,the flange thereof will enter thecut away portion 34, thus acting as awedge therein and moving the block I2 and clamp 15 into tighterengagement with the rail, to guard against slippage or displacementthereof.

The scotch block 25 may be manually released 40 by the miner, to theposition best shown in Figure 2, by swinging the lever 28 outwardly onits axis and at the same time pulling the lever so that the trigger 38rocks on the rod 32. While the wheelis still engaged with the scotchblock l2, the scotch block 25 may be released by the miner, by pullingthe lever 28 outwardly at its free end, the length of the rod 32permitting the necessary movement, especially to enable the parts toslip past the drum of the wheel. By us- 50 ing the lever to pull thetrigger out and return the scotch block l2 to its open position, the carhaving the wheel II can be pulled or moved away from the block I2without endangering the miner. In cases where the weight of the car isstill against the scotch block 25, the lever 28 may be pulled out intoengagement with the abutment 33 and then when the scotch 25 is released,the lever can be pulled back into ready or open position and then Whenthe car has been removed, the lever is pushed back into normal positionas in Fi ure 2.

In some instances it is necessary to apply a scotch to a rail having noopen end. The bevel edge 34 of the clamp, with the lever I8 having thebevel edge 35 permits relative tilting of these parts so that the devicemay be attached with-- out disconnecting the rail.

Said lever I8 is also beveled at 35 to permit the release of the clampso that it may be placed on or removed from the rail anywhere withouthaving to slip it over the end of the rail. It is clear that theopenings in the clamp I5 and lever I8, through which the bolt Illpasses, are of such size to permit the movements mentioned.

Various changes may be resorted to provided they fall within the spiritand scope of the invention.

I claim as my invention:-'

1. A device of the class described having a scotch block, means tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, and means operable throughmovement of a wheel to engage the first mentioned scotch block, to applythe second mentioned scotch block to the rail on the side of the Wheelopposite to the first mentioned scotch block.

2. A device of the class described having a scotch block, means. tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, means operable throughmovement of a wheel to engage the first mentioned scotch block, to applythe second mentioned scotch block to the rail on the side of the wheelopposite to the first mentioned scotch block, the first 'mentioned meanscomprising a clamp, said clamp and first mentioned scotch block beingengageable with a rail.

3. A device of the class described having a scotch block, means tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, means operable throughmovement of a wheel to engage the first mentioned scotch block, to applythe second mentioned scotch block to the rail on the side of the wheelopposite to the first mentioned scotch block, the first mentioned meanscomprising a clamp, said clamp and first mentioned scotch block beingengageable with a rail, a bolt passing through the first mentionedscotch block and clamp, said clamp having a beveled upper edge portionproviding clearance to receive the flange of a wheel to wedge the sameinto engagement with a rail.

4. A device of the class described having a scotch block, means tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, means operable thoughmovement of a wheel to engage the first mentioned scotch block, to applythe second mentioned scotch block to the rail on the side of the wheelopposite to the first mentioned scotch block, the first mentioned meanscomprising a clamp, said clamp and first mentioned scotch block beingengageable with a rail, a bolt passing through the first mentionedscotch block and clamp, said clamp having a beveled upper edge portionproviding clearance to receive the flange of a wheel to Wedge the sameinto engagenient with a rail, a nut on said bolt, a lever on the boltbetween the nut and clamp, said lever having a beveled upper end,permitting movement thereof to afford clearance between the clamp andfirst mentioned scotch block.

5. A device of the class described having a scotch block, means tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, means operable throughmovement of a wheel to engage the first mentioned scotch block, to applythe second mentioned'scotch block to the rail on the side of the wheelopposite to the first mentioned scotch block, the second mentioned meansincluding a lever automatically movable by the Wheel, for theapplication of the second mentioned scotch block, said lever beingmanually operable to release the second mentioned scotch block.

6. A device of the class described having a scotch block, means tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, means operable throughmovement of a wheel to engage the first mentioned scotch block, to applythe second mentioned scotch block to the rail on the side of the wheelopposite to the first mentioned scotch block, the second mentioned meansincluding a lever automaticaly movable by the wheel, for the applicationof the second mentioned scotch block, said lever being manually operableto release the second mentioned scotch block, an arm extending from thefirst mentioned scotch block, and means pivoting the second mentionedscotch block to the arm on a vertical axis.

'7. A device of the class described having a scotch block, means tosecure said scotch block to a rail, a second scotch block movablysecured to the first mentioned scotch block, means operable throughmovement ocf a wheel to engage the first mentioned scotch block, toapply the secondv mentioned scotch block to the rail on the side of thewheel opposite to the first mentioned scotch block, the second mentionedmeans including a lever automatically movable by the Wheel, for theapplication of the second mentioned scotch block, said lever beingmanually operable to release the second mentioned scotch block, atrigger pivoted to the lever adapted for direct engagement with the carwheel, and a rod on the first mentioned scotch block on which thetrigger is pivotally and slidably mounted.

CHARLES F. SIWIT'H.

